1 / 13

Advanced Chemistry Notes

Advanced Chemistry Notes. Colloids. Colloids and Solutions. Recall : solutions were homogenous mixtures Suspensions are a heterogeneous mixture in which the particles eventually settle out. Ex: muddy water Colloids are intermediates of solutions and suspensions. Colloids.

krista
Download Presentation

Advanced Chemistry Notes

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Advanced Chemistry Notes Colloids

  2. Colloids and Solutions Recall: solutions were homogenous mixtures • Suspensions are a heterogeneous mixture in which the particles eventually settle out. • Ex: muddy water • Colloids are intermediates of solutions and suspensions.

  3. Colloids Colloids are defined as mixtures composed of two or more phases of matter. • Dispersed phase (colloid particles) - larger than the single particles of a solution but smaller than the particles of a suspension. • Continuous Phase – the dispersing medium

  4. Colloids

  5. Colloids and Solutions

  6. Classification of Colloids Colloids are based on the states of the dispersed and continuous phases • Aerosols – liquids and solids dispersed in gases • Ex: Smoke • Foams – gases dispersed in a liquid or a solid • Marshmallows; whipped cream

  7. Classification of Colloids Colloids are based on the states of the dispersed and continuous phases • Emulsions – liquids are dispersed in other liquids or in solids • Ex: Mayo, cheese, • Sols – dispersion of solids in liquids or other solids • Ex: paint, jelly, pearls

  8. Properties of Colloids Special properties of Colloids • Tyndall effect – the scattering of light by a colloid

  9. Properties of Colloids Special properties of Colloids • Brownian Motion – continuous random motion of colloid particles.

  10. Summary Be able to… • Define Colloid and Suspension • Explain how Colloids relate to Solutions and Suspensions in terms of particle size and permanence • Classify Colloids • Describe properties of Colloids

More Related